Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16,470 users
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13,922 users
javascript
add javascript that will run on this domain. back up your scripts in the options area (shortcut there by clicking the "JS" letters in the bottom right)
13,146 users
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
12,843 users
Fake Filler
A form filler that fills all form inputs (textboxes, textareas, radio buttons, dropdowns, etc.) with fake and randomly generated data. The purpose of this extension is to help developers and testers test forms quickly and easily.
12,184 users
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
12,100 users
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
12,051 users
polkadot{.js} extension
Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account.
11,338 users
Mobile emulator
Smartphone emulator on computer very realistic with several models to test mobile websites.
10,333 users
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10,294 users
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
9,924 users
SQLite Manager
manage, edit, manipulate, plot and save one or multiple SQLite databases simultaneously
9,922 users
HackBar V2
[No License, FOREVER FREE] A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. You can ask request here: https://github.com/Hack-Free/HackBar
9,665 users
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
9,559 users
